Resumen de Comportamiento hidráulico y geoquímico del acuífero en el Valle el Hundido, Municipio de Cuatro Ciénegas, Coahuila, México
This paper presents the results of the project CONACYT-SEMARNAT 2007 (Clave CO-1- 0083), this investigation allowed us to define the hydraulic and geochemical behavior of aquifers in fractured and granular media, a census of water harvesting in the Hundido Valley, registering a total of 142 works, 85 are operating and 57 are not equipped. In the static level settings ground levels range from 50.00m in the use CNA 48 to 40.00 m in the well CNA 124, while the static level isoelevación ranges from 800.00 m in Well CNA 760.00m 48 to 124 in the use CNA . Following on from the pumping tests of long duration (72 hrs) by Jacob, Hantus, Theis it was determined that the aquifer in fractured media behaves as free, the values T = 9296.76 M2 / Day, the storage coefficient (S) is 1.89E-01., the average flow (Q l / s) is approximately 84.01 (l / s). Using the Piper triangular diagram, Schoeller-Berkalov it was determined four types of water: Sulfates Mixed, Mixed Sodium, Calcium sulfate and sodium sulphates. Since the specific conductivity using the equation of Sodium Absorption Ratio (SAR) is able to establish four groups of water: C4-S4, C4-S2, S1 and C3-C4-S1 with conductivities ranging from micro-mhos 97.529 /cm in the well CNA138 to1671Micro-mhos/cm in the well CNA 9.
